Skylight-actuating mechanism



y 1930. B. P. BLASKI 1,760,110

SKYLIGHT ACTUATING MECHANISM Filed Aug. 27, 1925 Imfent;

47 044. a. am

Patented May 27, 1930 1,760,110

tlttiTE STATES PATENT OFFICE BENJAMIN LP. IBLASKI, OF CHICAGO, ILLINOIS SKYLIGHT-AGTUATING MECHANISM Application filed August 27, 1925. Serial No. 52,813.

My invention relates to skylight actuating indicated by the same reference characters,-

mechanisms and it has for its principal object indicates the side sills of the frame of a the provision of anew and improved'conskylight, having cross bars 16 securedtherestruction by which the stress upon the moV- on at intervals therealong. Rafters 17 are .5 able section of a skylight may be minimized secured at their lower ends to the cross bars so that the section can be operated substan- 16 and are secured together at their upper tially without distortion and without breakends, supporting bars 18 being connected age, and particularly so that very little, if with the rafters near their upper ends and any, tension will be placed on the section being preferably connected with the cross 10 when it is brought to its fully closed position. bars'16 at their lower ends (not shown). Ex- It is another object of my invention to imtending longitudinally of the skylight at the prove the connections by which power is ridge portion, I have provided a cap 19 suptransmitted for the opening and closing operported by the upright bars 18." At each side I ations from an operating shaft of the secof the skylight, I provide a movable section 15 tion. comprising a frame supporting one or more It is still another object of my invention sheets of glass 20, each of said sections being to improve devices of this type in sundry deprovided with a top rail 21, a bottom rail 22 tails hereinafter pointed out. The preferred and a plurality of transversely extending bars means by which I have accomplished my sev- 23, the glass being secured in the frame work eral objects are illustrated in the accompanyby means of strips 26% which overlie the side 7 ing drawing and are hereinafter specifically edges of the glass. Each section is pivotally described. That which I believe to be new supported in position by means of plates 25 and desire to cover by this application is set secured to the top rail 21 at opposite ends forth in the claims. thereof, each of the plates 25 being provided 25 In the drawing, p with a lug 26 extending through a suitable Fig. 1 is an end view of one side portion opening in the horizontally extending flange of a skylight embodying my improved conof an adjacent rafter 17 By this construe struction, parts of the structure being broken tion the closure section of the skylight. is away and some parts being shown in section. pivotally supported on the supporting struc- Fig. 2 is across section taken on line 22 ture so as to be capable of beingswung up so of Fig. 5. 1 and down thereon for ventilating purposes.

Fig. 3 is a cross section taken on line 3-3 As is clearly shown inFig. 1, the top bar of Fig. 1. of the section comprises a flange 27 adapted Fig. 4 is a vertical cross section on an ento 'rest upon a flange 28 of the ridge cap 19 "larged scale through the pinion by which when the section is in closed position. The power is transmitted to one of the operating bottom rail is likewise provided with a flange bars for giving the movable section of the portion 29 adapted to be lowered into conskylight a swinging movement. tact with the side sill 15 of the skylight.

Fig. 5 is a view, more or less diagrammatlc, The means for raising and lowering the 1 showing the position of Cer ain f h p r s closure section comprises a shaft 30 revolubly at the end of the operation 0f Clos ng he mounted upon brackets 31 carried by the cross section. bars 16. This shaft 30 is provided with Fig. 6 is a central vertical section through pinions 32 fixedly mounted thereon at interthe pinion shown in Fig. 4:. vals along the skylight, each of said pinions 4 Fig.7 is a view of the parts shown in Fig. being provided with an operating bar 33 in 6 as seen from the left in said figure, but the form of'a rack meshing with the pinion, with certain of the parts omitted for clearsaid rack bars being adapted upon rotation ness of illustration. of the shaft to move the bars 33 longitudinally Referring now to the several figures of the of themselves for raising the closure section drawing, in which corresponding parts are by contact therewith.

As is best shown in Fig. 1, the upper end of each of the rack bars 33 is connected with the under face of the closure section by means of a link or links 34, such links being pivotally connected in position by means of bolts 35, as shown in Fig. 2.

Referring now particularly to Figs. 4, 6, and 7, each of the pinions 32 comprises a fly wheel 36 preferable in the form of a casting secured by means of a-set screw 37 adjustably in position upon the shaft 30. Secured upon one face of the fly wheel; 36 are two plates 38 and 39 which are held in spaced relation by means of lugs 10. formed integrally with the plates. These plates are secured to the flywheel by means'of bolts 41 which extend through suitable Openings in the plates and arerivetedupon the opposit'eface ofthe flywheel, the construction being such that the bolts are rotatable with respect to the plates. As is bestshown in Fig. 4, the bolts 41 i are arranged" in symmetrically spaced'position'about the axis of the shaft 30so'as' to act as teeth for the pinion 32, in

the construction shown three of such bolts being provided Additional bolts 4L2 are provided'in spaced relation between the bolts" 41, the bolts 42 'being'loosely mounted in the plates 38' and 39so aslto' be rotatable therein,

eing held The rack bars 33are held in engagement Withthe teeth of thepinions 32 by means of clips which extend about the rack bars with their end portions mounted upon the shaft 30 on opposite faces of the pinions.

The arrangement is such'that at about the time When the closure section reaches its closedposition the teeth of the pinions 32 are brought into contact with portions of'the rack'bars 33'beyond the teeth of the rack bar, as is shownin Fig. 5, so as to prevent further'" downward'move'ment of the rack bars,

the pinions 32 being adjusted with respect to each other about the shaft 30 so as to effect simultaneous stopping action by the several pinions'. In case the closure section has been brought to its fully closed position slightly before the stoppage of the rotation of the shaft30-as described, the rack bars 33are adapted to move downwardly to a limited'extent away from thebottom face of the closure sectionas is shown in Fig. 5 whereby the'ba'r's are prevented from producing any undue strain on the closure section or the supporting structure such as might cause reakage of the parts.

By myconstruction in which the bolts forming the teethof the pinion are r0tat-' ably mounted, the pinions act very effectively upon the rack bars for the opening and closing operations'of the closure section. By

the provision of the fly wheel membersofthe pinions 32, the shaft 30 is given suflicient' momentum for assisting in the operation of position by contact with the the mechanism, and particularly for the closing operation, when the shaft 30 may be spun for effecting an automatic closure of the skylight when it is desired to effect such closure hurriedly By constructing the pinions 32 in the manner above described, I am enabled to produce such pinions at a comparatively low cost of manufacture, the plates 38 and 39 being preferably duplicates of each other, and the arrangement being such that the improved pinion of'the type described can be produced with a-minimum of machine work thereon.

a As is shown-in Figs. 1 and 3, the s-haft 30 has a gear 44% fixedly mounted thereon, such gear being drivenby a pinion 4L5" meshing therewith, such pinion being riven by a pul ley lti whichin turn'is operated by a chain 47;

While I prefer to as'illustrated in-the drawing, I wish to have it understood thatI do not desire to be-limite'dto the particular forniof construction illustrated except so far thesame is specifi-- callyclaimed, inasmuch as it is evident that changes may be made in the arrangement employ the construction without departing from the spirit of the intionire'achesfits closed position;

2. in askylight, th'ecombination of porting structure, a closure section swingingly mounted on said supporting'structure, a linkpivotally connected with said section'on' its bottom face, a bar pivo'tally connected with said link adapted by contact withthe' the direction away from theseca sup- 7 section to inove it upwardly, and means for giving, saidbara longitudinal movement for swinging the section up and down,said link being adapted'to permit limited downward movement of t'he jbar independently ofmoveinent of the section, the engagement bet-ween said'barand themeans by whichthe bar'fis'a'c tuated for swinging the section servinglto stop the downward movement of the bar at the endof the elosing'm'ovement of the'section. for; preventing the application of a heavy downwar'dpull through said'bar on said sec tion 3. Ina skylight, the combination of a sup porting structure, a closure section swingingly mounted on saidsupporting structure, a shaft revolublymounted parallel with said section, pinions fixedly mounted on said shaft, means for rotating said shaft and pinions, rack bars meshing with said pinions and adapted upon rotation of the shaft to swing said section upwardly into opened position, and means serving to stop the downward movement of the rack bars at approximately the time when the section reaches its closed position, said rack bars being adapted to have a limited downward movement with respect to the section at the end of the operation of closing the section.

4:. In a skylight, the combination of a supporting structure, a closure section swingingly mounted on said supporting structure, a shaft revolubly mounted parallel with said section, pinions fixedly mounted on said shaft, means for rotating said shaft and pinions, rack bars meshing with said pinions and adapted upon rotation of the shaft to swing said section upwardly into opened position, and means serving to hold said rack bars from swinging out of engagement with the pinions, the arrangement being such that the engagement of the bars beyond the teeth thereon with the teeth of the pinions serves to stop the downward movement of the rack bars at approximately the time when the section reaches its closed position and that said bars are adapted to have a limited downward movement with respect to the section for preventing tension on the section in case the downward movement of the bars continues slightly after the completion of the closing operation.

5. In a skylight, the combination of a supporting structure having an opening therethrough, a closure section swingingly mounted on said structure adapted upon a downward swinging movement to close said opening, alink pivotally connected with said section on its under face, a bar pivotally connected with said link adapted by engagement with said section upon upward movement of the bar to press upwardly on said section for raising it and adapted upon its downward movement to move out of operative engagement with the section at the end of the closing movement of the section, and means for giving said bar alternative up and down movements.

BENJAMIN P. BLASKI. 

